Question: What are the capital cities that start with letter W ?
Paraphrase: Name the capital cities beginning with letter W.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q5119 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'w')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Warsaw, Warsaw, Washington, D.C., Washington, D.C., Windhoek, Windhoek, Washington, Washington, Wellington, Wellington, Washukanni, Washukanni, Willemstad, Willemstad